Place the breadcrumbs in a small bowl and stir in the milk; allow them to sit for 5 minutes, then stir to combine well and set aside.,In a medium size bowl, add the chuck, pork, veal, parsley, garlic, cheese, egg yolk, salt and pepper and the moistened breadcrumbs.,Mix everything with wet hands just until combined.,Fry a small spoonful in a frying pan and taste for seasoning.,______,Bake in a preheated 325F oven until the meatballs are browned and an instant read thermometer inserted into one of them registers 165F.,Serve as is or add to your favorite tomato sauce.